body {
	padding: 20px;
}
#container {
	border-bottom: 1px solid black;
	border-right: 1px solid black;
}
.fieldBlock {
	float: left;
	width: 30px;
	border-top: 1px solid black;
	border-left: 1px solid black;
	height: 30px;
}
.fieldBlockBorder {
	float: left;
   width: 30px;
   border-top: 1px solid black;
   border-left: 1px solid black;
   height: 30px;
   background: gray;
}
.fieldBlockSnake {
   float: left;
   width: 30px;
   border-top: 1px solid black;
   border-left: 1px solid black;
   height: 30px;
   background: green;
}
.fieldBlockApple {
   float: left;
   width: 30px;
   border-top: 1px solid black;
   border-left: 1px solid black;
   height: 30px;
   background: red;
}